• 제목/요약/키워드: conceptual data model

검색결과 695건 처리시간 0.023초

지구운동 중심 태양계 실험 모형이 초등 예비교사와 초등학교 교사의 천문개념 변화에 미치는 효과 (The Changes of Preservice and Inservice Elementary School Teachers' Concepts of the Solar System Based upon Their Exposure to the Earth Motion Centric Solar System Model)

  • 채동현
    • 한국과학교육학회지
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    • 제24권5호
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    • pp.886-901
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    • 2004
  • 본 연구는 새롭게 고안된 "지구중심운동 태양계 실험 모형"이라는 실험모형을 통해서 초등 예비교사와 초등학교 교사의 "천문개념 변화"에 초점을 맞추었다. 전주에 소재하고 있는 전주교육대학 졸업반 학생 31명과 전북에서 근무하는 초등교사 30명을 연구 대상으로 하였다. 먼저 학생들의 사전개념을 조사하고, 이 실험 모형을 활용한 수업전후에 개념검사를 실시하였다. 검사도구는 모두 10문항으로 내행성의 운동, 내행성의 위상과 크기, 외행성의 운동, 혜성의 운동으로 구성되었다. 분석 방법은 사전 검사에서 천문개념에 대한 유년적 개념을 확인하고, 사후 검사에서 초등 예비교사와 초등학교 교사의 개념이 어떻게 변화되었는지를 조사하였다. 결과적으로 지구 운동 중심 태양계 모형이 내행성의 운동과 내행성의 위상과 크기변화, 외행성의 운동에 관한 내용에서는 올바른 과학적 개념 형성에 효과가 있었다.

재가노인의 가족생활 만족도 예측모형 (Prediction Modeling on Family Life Satisfaction of Old Adults Living at Home)

  • 허영미;석소현
    • 대한간호학회지
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    • 제48권5호
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    • pp.534-544
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    • 2018
  • Purpose: This study was conducted to construct and test a structural model on family life satisfaction of aged individuals living at home. The conceptual model was based on Bandura's self-efficacy and social cognitive theories (1977; 1986) and Bowen's (1976) family systems theory. Methods: From January 25 to March 5, 2016, 227 older adults living at home completed a structured questionnaire. Data were analyzed to calculate the direct and indirect effects of factors affecting family life satisfaction. SPSS WIN 20.0 and AMOS 20.0 were used. Results: The hypothetical model was a good fit for the data. The model fit indices were ${\chi}^2=78.05$, ${\chi}^2/df=1.35$, RMSR=.02, GFI=.98, AGFI=.96, NFI=.94, CFI=.98, and RMSEA=.05. Family life satisfaction was positively affected by perceived collective family efficacy, status of physical health, family communication, and family support. Depression resulted in a significant negative effect. Family differentiation had a significant indirect effect on family life satisfaction. The model explained 76% of variance in family life satisfaction. Conclusion: Perceived collective family efficacy, status of physical health, depression, family differentiation, family communication, and family support were significant factors explaining family life satisfaction among older adults staying at home. Further research should be conducted to seek intervention strategies to improve family life satisfaction among older adults living at home by focusing on the respective contributing factors.

An Integrated Model of CSR Perception and TAM on Intention to Adopt Mobile Banking

  • NGUYEN, Van Anh;NGUYEN, Thi Phuong Thao
    • The Journal of Asian Finance, Economics and Business
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    • 제7권12호
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    • pp.1073-1087
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    • 2020
  • The purpose of this paper is to (1) evaluate a proposed conceptual model based on integrated Technology Acceptance Model (TAM) and Corporate Social Responsibility (CSR); (2) compare the differences between Vietnam and South Korea regarding the effects of consumer perception of CSR activities and technology acceptance on intention to adopt mobile banking. Structural Equation Modeling (SEM) was conducted to analyze the data collected from the field survey questionnaires administered to a convenience sample of Vietnamese and Korean banking customers. The results showed that there is a difference between South Korea and Vietnam with regard to intention to use mobile banking services. While the effects of social responsibility and environmental responsibility on trust, trust on perceived usefulness, perceived risk on intention to use, perceived usefulness on intention to use were significant in the context of Vietnam but those effects were not significant in South Korea. Therefore, this study has attempted to fill this gap by empirically examining some of the important factors influencing the adoption of m-banking from the Vietnamese and Korean customers' perspectives. Finally, practical and theoretical implications for both banks and researchers in the m- banking context are also discussed in the concluding section.

비자발적 환경하에서 사용자의 심리적 몰입이 이직의도에 미치는 영향에 관한 연구 : 회계정보시스템 사용자를 중심으로 (A Study on the Effect of Turnover Intention by Psychological Commitments in Mandatory Environments : Focused on the Accounting Information Systems' Users)

  • 장원경;김태균
    • Journal of Information Technology Applications and Management
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    • 제14권1호
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    • pp.179-202
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    • 2007
  • This paper presents and tests a conceptual model of Technology Acceptance Model (TAM) that explains perceived usefulness, perceived ease of use, organizational commitment and turnover intention in terms of psychological commitments in mandatory environments. The model focuses on the psychological commitments (Kelman's internalization, Identification, compliance) as the primary predictors of perceived usefulness, perceived ease of use and organizational commitment. We discuss our current understanding of technology acceptance as well as the notion of mandated use. The results are as fellows that organizational commitment is negatively related to turnover intention : perceived usefulness is positively related to organizational commitment : psychological commitments are positively related to organizational commitment, perceived usefulness and perceived ease of use : perceived ease of use is positively related to perceived usefulness in mandatory environments. Through this research, psychological commitments are the strong determinants of technology acceptance in mandatory environments. These findings advance theory and contribution to the foundation for future research aimed at Improving our understanding of user adoption behavior in mandatory environments.

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과일 소비에 미치는 음식 관여도의 영향을 매개하는 요인 평가 (Measuring the Factors Mediating the Effect of Food Involvement on Fruit Consumption)

  • 강종헌;정항진
    • 동아시아식생활학회지
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    • 제18권2호
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    • pp.172-180
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    • 2008
  • The purpose of this study was to measure the causal relationships among food involvement, health, mood, convenience, sensory appeal, weight control, and fruit consumption. A total of 290 questionnaires were completed. A structural equation model was used to measure the causal effects of the constructs, and the structural analysis results for the data indicated an excellent model fit. The effects of food involvement on health, mood, convenience, sensory appeal, weight control, and fruit consumption were statistically significant. As expected, health, mood, and weight control had significant effects on fruit consumption. Moreover, food involvement had a significant indirect effect on fruit consumption through health, mood, convenience, sensory appeal and weight control. For the future development and testing of conceptual models that integrate the relationships among personality traits, food choice motives, and fruit consumption, this study may approach a deeper understanding of the complex relationships among fruit consumption behavior-related variables. Greater understanding of these complex relationships can improve the managerial diagnosis of the problem and opportunities for different marketing strategies, including fruit production and fruit product development and marketing communications.

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Prospects and Challenges of Social Media Marketing: Study of Indian Management Institutes

  • Bhandari, Ravneet Singh;Bansal, Sanjeev
    • Asian Journal of Business Environment
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    • 제8권4호
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    • pp.5-15
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    • 2018
  • Purpose - The research aimed to reveal real decisional behavioral of management institutes in India for social media marketing usage, and analyses of empirical elements of social media consumption pattern. Research design, data, and methodology - The investigation was based around a research methodology using quantitative analysis with appropriate statistical techniques on random surveys of consumers, detailed exploratory and confirmatory factor analyses are applied to assess the empirical validity of the model and multiple regression employed using R studio edition to validate the reliability of the developed models. Results - A new conceptual framework is proposed - the management institutions decision model, providing a tool for effective and more focused decision-making strategies for developing better utilization techniques for social media. Management institutions have different requirements based upon objectives and resources available. The evidence suggests that the administrators need to be more aware of consumer indicators when targeting and designing social media marketing strategy. Conclusions - The research was based on samples and not the entire population of target consumers, providing limitations. As an inferential statistical method was chosen, the results might be susceptible to inaccuracy. The model developed from different age users, thereby providing rich perspectives into social media usage pattern.

CAT을 이용한 저수지 수위 예측 (Prediction of Reservoir Water Level using CAT)

  • 장철희;김현준;김진택
    • 한국농공학회논문집
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    • 제54권1호
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    • pp.27-38
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    • 2012
  • This study is to analyse the hydrological behavior of agricultural reservoir using CAT (Catchment hydrologic cycle Assessment Tool). The CAT is a water cycle analysis model in order to quantitatively assess the characteristics of the short/long-term changes in watershed. It supports the effective design of water cycle improvement facilities by supplementing the strengths and weaknesses of existing conceptual parameter-based lumped hydrologic models and physical parameter-based distributed hydrologic models. The CAT especially supports the analysis of runoff processes in paddy fields and reservoirs. To evaluate the impact of agricultural reservoir operation and irrigation water supply on long-term rainfall-runoff process, the CAT was applied to Idong experimental catchment, operated for research on the rural catchment characteristics and accumulated long term data by hydrological observation equipments since 2000. From the results of the main control points, Idong, Yongdeok and Misan reservoirs, the daily water levels of those points are consistent well with observed water levels, and the Nash-Sutcliffe model efficiencies were 0.32~0.89 (2001~2007) and correlation coefficients were 0.73~0.98.

성인여성의 경제활동 참가 및 노동이동 의사의 상호관련성 (Woman's Labor Force Participation and Mobility Willingness in the Labor Market)

  • 김순미
    • 대한가정학회지
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    • 제36권1호
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    • pp.65-79
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    • 1998
  • The purposes of this study were to establish a conceptual model on the woman's labor force participation and mobility in the labor market and to analyze the correlation between them. Included in those models were two independent variable sets. The one was related to household's financial conditions and the other was associated to the woman's role such as marital status, the number of children and the existence of young children. KHPS's national data was used and the Binomial Probit Model and Bivariate Probit Model were employed to analyse the effects of independent variables and the correlations between two dependent variables. The results of this study were as follows. The rate of women's labor force participation and the percentage of mobility willingness were 15.4% and 22.0%. Among the variables which have affected women's labor force participation were total wage income, non-wage income, expenditure on children's education and the subject judgement of their financial status. The existence of children under the age of 6 and marital status had significant influences on women's mobility willingness. The correlation between women's labor force participation and mobility willingness was very significant statistically. These findings clarified the status of woman as a secondary worker and pointed that a woman's economic activity would be subject to the woman's condition rather than her human capital.

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교사의 건강증진생활양식 실천도와 관련요인 (Health-Promoting Life-Style and Related Factors Among Teachers)

  • 정인숙
    • 보건교육건강증진학회지
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    • 제20권2호
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    • pp.179-196
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    • 2003
  • This study was aimed at examining the self-reported health-promoting life- style (HPL) and related factors among teachers assumed to be role models for students. The subjects were 300 teachers who were conviently drawn from nine elementary schools and three high schools. The conceptual framework for this study was based on the Pender's revised Health Promotion Model(1996). Data was collected by a mailed survey (response rate, 62.5%) with structured questionnaire. The score of health-promoting life-style was 2.8(full mark: 5.0), harmonized relationship was the highest(3.2), and professional helath management was the lowest(2.0). The related factors to health-promoting life-styles were age, marital stauts, career, perceived health status, self esteem, intermal locus of control, perceived benefit, perceived barrier, self efficacy, and social support in univariate analysis. In the final regression model, predictors of HPL were social support, self esteem, perceived benefit. self efficacy, and perceived health status after control the effects of demographic characteristics (p<.0001, R2=0.494). The results generally supported the Pender Model. It is recommended to develop the health promotion program for teachers based on these results, and to evaluate the effect of that program for teacher.

생선 소비 행동에 미치는 섭취 태도, 건강 몰입, 지각된 편의성과 연령의 영향 (The Effects of Attitude towards Fish Eating, Health Involvement, Perceived Convenience, and Age on Fish Consumption Behavior)

  • 강종헌;고범석
    • 동아시아식생활학회지
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    • 제17권3호
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    • pp.304-311
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    • 2007
  • The purpose of this study was to measure the causal relationships among fish consumption behavior, attitude towards fish eating, health involvement, perceived convenience, and age. A total of 235 questionnaires were completed. A structural equation model was used to measure the causal effects of the constructs. The results of the study demonstrated that the structural analysis results were an excellent model fit for the data. The influence of age on attitude towards fish eating, health involvement, and perceived convenience was statistically significant. As expected, attitude towards fish eating, health involvement, and perceived convenience had significant effects on fish consumption behavior. Moreover, age had a significant indirect effect on fish consumption behavior through health involvement. Age also had a significant indirect effect on fish consumption behavior through perceived convenience. By developing and testing conceptual models that integrate the relationships among age, psychological variables, and fish consumption behavior, this study may offer a deeper understanding of the complex relationships among the variables. A greater understanding of these complex relationships can improve the managerial diagnoses of problems and the opportunities for different marketing strategies, including product development and marketing communications.

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